{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xd44d72a6661c742edd5a68db8d78582d1260e7267874be1ad7af43e3266360db",
    "signature": "0x5590676ac5a7b9da53862f8e91484a9d6d802f966a6a509fc313d18da4cdd4b53cc3d106560fa02dd3fb7f8baddbae84d3f491a52e5da789a05d5fc9699bf0121c",
    "signer": "0x5D4848bCf5c4abA1a0Fdf2B61408c9e4288aDb0E",
    "userId": "305415280"
  }
}